Warranty

Best in town 5 year/50k mile warranty

Peace of Mind

Roadside 

assistance

Financing

0% interest financing options available

Experts

ASE certified technicians

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Get a dealer alternative estimate on your repair

Shuttle

Free shuttle service while we work on your vehicle

400+ 5 Star Reviews

400+

Reviews

Free Second Opinion Inspection.
100% Price Match Guarantee.

Free Second Opinion Inspection. 100% Price Match Guarantee.

Auto Electrical Repair

Electrical Problems Don't Fix Themselves

From starting your vehicle in the morning to powering every electronic feature on the road, your electrical system plays a vital role in dependable driving. Professional auto electrical repair helps keep every connection working as it should.

Master Tech did the brakes on my BMW, they also checked over the full car, and advised with photos what else is recommended. They did a great job and also were able to show me the older brakes. I highly recommend them for any maintenance or repairs!

Jennifer Coffelt

Master Tech did the brakes on my BMW, they also checked over the full car, and advised with photos what else is recommended. They did a great job and also were able to show me the older brakes. I highly recommend them for any maintenance or repairs!

Jennifer Coffelt

Auto Electrical Repair Services

Experience a More Complete Approach to Electrical Repairs

Electrical issues can be some of the most difficult vehicle problems to diagnose because the symptoms often point in the wrong direction. A dead battery may actually be caused by a weak alternator. Flickering lights could signal failing wiring or poor electrical connections. Replacing parts without identifying the true cause often leads to repeat visits and unnecessary expense.

Master Tech Automotive believes every repair should begin with accurate testing. Our technicians carefully evaluate the entire electrical system, including the battery, charging system, starter, alternator, wiring, fuses, and related components, to pinpoint the source of the issue. This detailed approach allows us to perform auto electrical repair that solves the problem, not just the symptom. By combining advanced diagnostic equipment with experienced technicians, we’re able to restore dependable performance while helping prevent future electrical failures.

Schedule An Auto Electrical Repair Service Today!

Car & Truck Symptoms That Shouldn't Be Ignored

Prompt attention can prevent small electrical faults from affecting other important vehicle systems. If your vehicle is showing any of these warning signs, it may be time to have the electrical system inspected:

This is often caused by insufficient electrical power reaching the starter motor, commonly due to a weak or failing battery. Corroded or loose battery terminals, a failing starter motor, or poor electrical grounding can also reduce the current available during ignition. In some cases, a worn alternator may not adequately recharge the battery, leading to sluggish or uneven cranking when starting the engine.

Warning lights may appear unexpectedly due to irregularities within the vehicle’s electrical or sensor systems. A weak battery, failing alternator, or poor grounding can cause voltage fluctuations that trigger multiple warning indicators. Faulty sensors, a malfunctioning engine control module, or damaged wiring can also send incorrect signals to the dashboard, resulting in warning lights illuminating even when no major mechanical issue is present.

A car’s headlights may become dim while driving due to an issue with the vehicle’s charging or electrical system. Common causes include a failing alternator, a weak battery, loose or corroded electrical connections, or a worn drive belt that prevents the alternator from maintaining a consistent voltage.

A battery that requires frequent jump-starts is often failing to hold a proper charge due to age, internal wear, or a defect in the charging system. A malfunctioning alternator may not be replenishing the battery while the engine runs, while corroded terminals or loose connections can prevent efficient power transfer. In some cases, an electrical parasitic drain from a faulty component may continuously draw power when the vehicle is off, causing the battery to discharge repeatedly.

This typically indicates overheating or short-circuiting within the electrical system. This can be caused by damaged wiring insulation, overloaded circuits, failing relays, or a malfunctioning component drawing excessive current. As the wiring or connectors heat up, they may melt or scorch, producing a distinct burning smell that signals a potentially serious electrical fault requiring immediate inspection.

This may be due to unstable electrical supply within the vehicle, often caused by a weak battery, failing alternator, or poor grounding connections. Corroded wiring, loose connectors, or a malfunctioning body control module can also disrupt communication between electronic systems. These issues can lead to inconsistent operation of features such as infotainment systems, power seats, and interior lighting until the underlying fault is repaired.

Common electrical issues are a weak battery, corroded wiring connections, a failing switch, or a malfunctioning body control module. Damaged wiring, blown fuses, or worn window or lock actuators also interrupt normal operation, causing the components to work intermittently or stop functioning.

If replacing the alternator or battery has not resolved an electrical issue, the underlying cause may lie elsewhere in the vehicle’s electrical system. Faulty wiring, poor grounding, blown fuses, or a malfunctioning control module can still prevent proper charging or power distribution. In some cases, a parasitic electrical drain or an incompatible replacement part may continue to disrupt system performance, meaning further diagnosis is needed beyond the primary components.

Experts

ASE certified technicians

Save $

Get a dealer alternative estimate on your repair

Shuttle

Free shuttle service while we work on your vehicle

Service Areas

Dependable Auto Electrical Repair in Gresham, Oregon

Reliable vehicles begin with reliable diagnostics. Drivers throughout Gresham, Oregon trust Master Tech Automotive to diagnose and repair electrical issues with care, precision, and honesty. 

Get to the source of the problem with professional auto electrical repair from Master Tech Automotive and enjoy dependable performance every time you turn the key.

Testimonials
Customer Reviews
Real
Experiences.
Real
Results.

Always polite, helpful and got my truck back to me as soon as they could!

Nick Schaal

MasterTech is so different than other mechanics! They give you updates with photos via text about what should be repaired or needing any kind of attention in the future. Also, their warranty is longer than most plus the FREE ROADSIDE ASSISTANCE is just as good as AAA without the fee. I’d recommend MasterTech to anyone. Getting an appointment is easy to do

Lacey Blazejewski

Had a synthetic oil change on my German car and they did a fine job and were friendly. They also did a very detailed inspection with photos at no additional charge. Very professional service.

Leonard Ball

Master Tech did the brakes on my BMW, they also checked over the full car, and advised with photos what else is recommended. They did a great job and also were able to show me the older brakes. I highly recommend them for any maintenance or repairs!

Jennifer Coffelt

Thanks as always for the great work, it was an expensive fix but you guys did it in a timely manner and I very much appreciate it. Great as always! Thank you!

Rena Shereck

They are very accurate with their estimates and no surprise repairs.
I really appreciate the thorough inspections, with electronic vehicle history files with photos and recommendations. This added value shows their commitment to exceptional customer service.

Matt Allen

Had them do a routine service on my transmission and the work was done in a timely matter and Daren and the other employees were polite and helpful.

Derek Jackson

I was really impressed with the work done at Master Tech Automotive. Very professional and was done right in a timely manner. Master Tech will be my go to from here on.

Tim

The technicians at master tech were very helpful with finding the problem with my truck and giving me multiple options in order to fix it. The repairs they did were fantastic, they look and preform perfectly.

Bubba Johnson

Darren, store manager, and his crew do a terrific job! I feel very confident taking my vehicle to Master Tech even though we now as live in Tigard. Its well worth the trip.

Dianne Kaepplinger

I had a great experience getting my Honda Fit 30,000 mile service and new tires. Communication was quick and clear, staff were friendly, and I felt the cost was reasonable. Thanks for making this normally stressful process very easy!

Michele Bennett

Once again you have performed flawlessly and within the time frame which was estimated. With the radiator and thermostat replaced we now have heat. Thanks to all who participated, and will continue to use MasterTech for repairs, etc.

Jim

*Rates from 0%-36% APR. Payment options through Affirm are subject to an eligibility check, may not be available in all states, and are provided by these lending partners: affirm.com/lenders. Options depend on your purchase amount, and a down payment may be required. CA residents: Loans by Affirm Loan Services, LLC are made or arranged pursuant to a California Finance Lenders Law license.

400+ 5 Star Reviews

Warranty

Best in town 5 year/50k mile warranty

Peace of Mind

Roadside Assistance

Financing

0% interest financing options available

Experts

ASE certified technicians

Save $

Get a dealer alternative estimate on your repair

Shuttle

Free shuttle service while we work on your vehicle